DR. DERRICK R. DUFFIELD M. D.
NPI 1922166867
Family Medicine in Hattiesburg, MS
About Dr. Derrick R. Duffield M. D. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DERRICK R. DUFFIELD M. D. (NPI 1922166867) is an individual family medicine provider in Hattiesburg, Mississippi, licensed in Mississippi (15467) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with Forrest General Hospital, and is a graduate of Louisiana State University School Of Medicine In New Orleans (1996).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Derrick R. Duffield M. D. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
8Medicare enrollment records show Derrick Duffield reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hattiesburg, MS 39402
- Reassigned Medicare billing, Mississippi enrollment
- 696 clinicians in this Medicare group
Hattiesburg, MS 39401
- Reassigned Medicare billing, Mississippi enrollment
- 248 clinicians in this Medicare group
Brookhaven, MS 39601
- Reassigned Medicare billing, Mississippi enrollment
- 153 clinicians in this Medicare group
Hazlehurst, MS 39083
- Reassigned Medicare billing, Mississippi enrollment
- 159 clinicians in this Medicare group
Jackson, MS 39204
- Reassigned Medicare billing, Mississippi enrollment
- 187 clinicians in this Medicare group
Port Gibson, MS 39150
- Reassigned Medicare billing, Mississippi enrollment
- 69 clinicians in this Medicare group
Kosciusko, MS 39090
- Reassigned Medicare billing, Mississippi enrollment
- 46 clinicians in this Medicare group
Indianola, MS 38751
- Reassigned Medicare billing, Mississippi enrollment
- 89 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 26
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Forrest General Hospital
Acute Care Hospitals · Hattiesburg, MSPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 39402 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Derrick Duffield's NPI number?
The NPI number for Derrick Duffield is 1922166867. It was assigned to this individual provider in the NPPES registry on December 4, 2006.
Where is Derrick Duffield located?
Derrick Duffield practices at 105 Thornhill Dr, Hattiesburg, MS 39402. The listed phone number is (601) 261-3737.
What is Derrick Duffield's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Derrick Duffield enrolled in Medicare?
Yes. Derrick Duffield is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Derrick Duffield's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Derrick Duffield reassigns Medicare benefits to 8 organizations: Hattiesburg Clinic PA (Hattiesburg, MS), Forrest County General Hospital (Hattiesburg, MS), Kings Daughters Medical Center (Brookhaven, MS), Keystone Medical Services Of Ms, Inc (Hazlehurst, MS), App Of Mississippi Ed, LLC (Jackson, MS) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Derrick Duffield's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Derrick Duffield accept?
Health plans from Cigna Healthcare, Molina Healthcare and UnitedHealthcare list Derrick Duffield as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Derrick Duffield affiliated with any hospitals?
According to CMS data, Derrick Duffield is affiliated with Forrest General Hospital.
When was this NPI record last updated?
The NPPES record for Derrick Duffield was last updated on August 11, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.